What’s angles 2 and 4

3=95 vertically opposite angle

2+95=129 exterior angle is equal to the sum of two opposite interior angle of a triangle

2=129-95=34 answe

4+3+47=180 sum of interior angles of a triangle is 180

4=180-47-95=38 answer

Step-by-step explanation:

B and D

Step-by-step explanation:

To determine which point is a solution, substitute the x- coordinate into the right side of the equation and if the value obtained agrees with the y- coordinate then it is a solution.

(5, 10)

y = 5² - 2(5) + 1 = 25 - 10 + 1 = 16 ≠ 10 ← not a solution

(- 1, 3)

y = (- 1)² - 2(- 1) + 1 = 1 + 2 + 1 = 3 ← This is a solution

(1, 2)

y = 1² - 2(1) + 1 = 1 - 2 + 1 = 0 ≠ 2 ← not a solution

(3, 4)

y = 3² - 2(3) + 1 = 9 - 6 + 1 = 4 ← this is a solution